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            <tr><td class="title">LCOV - code coverage report</td></tr>
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            <td width="10%" class="headerItem">Current view:</td>
            <td width="10%" class="headerValue"><a href="../index.html" title="Click to go to top-level">top level</a> - <a href="index.html" title="Click to go to directory Log">Log</a> - blockqueue.h<span style="font-size: 80%;"> (source / <a href="blockqueue.h.func-c.html" title="Click to go to function table">functions</a>)</span></td>
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            <td width="5%" class="headerCovTableHead">Coverage</td>
            <td width="5%" class="headerCovTableHead" title="Covered + Uncovered code">Total</td>
            <td width="5%" class="headerCovTableHead" title="Exercised code only">Hit</td>
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            <td class="headerItem">Test:</td>
            <td class="headerValue">覆盖率信息</td>
            <td></td>
            <td class="headerItem">Lines:</td>
            <td class="headerCovTableEntryHi">97.8&nbsp;%</td>
            <td class="headerCovTableEntry">46</td>
            <td class="headerCovTableEntry">45</td>
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            <td class="headerItem">Test Date:</td>
            <td class="headerValue">2024-03-12 16:43:50</td>
            <td></td>
            <td class="headerItem">Functions:</td>
            <td class="headerCovTableEntryHi">100.0&nbsp;%</td>
            <td class="headerCovTableEntry">9</td>
            <td class="headerCovTableEntry">9</td>
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            <td class="headerItem">Legend:</td>
            <td class="headerValueLeg">            Lines:
            <span class="coverLegendCov">hit</span>
            <span class="coverLegendNoCov">not hit</span>
            | Branches:
            <span class="coverLegendCov">+</span> taken
            <span class="coverLegendNoCov">-</span> not taken
            <span class="coverLegendNoCov">#</span> not executed
</td>
            <td></td>
            <td class="headerItem">Branches:</td>
            <td class="headerCovTableEntryLo">53.8&nbsp;%</td>
            <td class="headerCovTableEntry">26</td>
            <td class="headerCovTableEntry">14</td>
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<pre class="sourceHeading">             Branch data     Line data    Source code</pre>
<pre class="source">
<span id="L1"><span class="lineNum">       1</span>                 :             : #ifndef BLOCKQUEUE_H</span>
<span id="L2"><span class="lineNum">       2</span>                 :             : #define BLOCKQUEUE_H</span>
<span id="L3"><span class="lineNum">       3</span>                 :             : </span>
<span id="L4"><span class="lineNum">       4</span>                 :             : #include&lt;mutex&gt;</span>
<span id="L5"><span class="lineNum">       5</span>                 :             : #include&lt;deque&gt;</span>
<span id="L6"><span class="lineNum">       6</span>                 :             : #include&lt;condition_variable&gt;</span>
<span id="L7"><span class="lineNum">       7</span>                 :             : #include&lt;sys/time.h&gt;</span>
<span id="L8"><span class="lineNum">       8</span>                 :             : #include&lt;assert.h&gt;</span>
<span id="L9"><span class="lineNum">       9</span>                 :             : </span>
<span id="L10"><span class="lineNum">      10</span>                 :             : template&lt;class T&gt;</span>
<span id="L11"><span class="lineNum">      11</span>                 :             : class BlockDeque</span>
<span id="L12"><span class="lineNum">      12</span>                 :             : {</span>
<span id="L13"><span class="lineNum">      13</span>                 :             : public:</span>
<span id="L14"><span class="lineNum">      14</span>                 :             :     explicit BlockDeque(size_t Maxcapacity = 1000);</span>
<span id="L15"><span class="lineNum">      15</span>                 :             :     ~BlockDeque();</span>
<span id="L16"><span class="lineNum">      16</span>                 :             : </span>
<span id="L17"><span class="lineNum">      17</span>                 :             :     void clear();</span>
<span id="L18"><span class="lineNum">      18</span>                 :             : </span>
<span id="L19"><span class="lineNum">      19</span>                 :             :     bool empty();</span>
<span id="L20"><span class="lineNum">      20</span>                 :             : </span>
<span id="L21"><span class="lineNum">      21</span>                 :             :     bool full();</span>
<span id="L22"><span class="lineNum">      22</span>                 :             : </span>
<span id="L23"><span class="lineNum">      23</span>                 :             :     void Close();</span>
<span id="L24"><span class="lineNum">      24</span>                 :             : </span>
<span id="L25"><span class="lineNum">      25</span>                 :             :     size_t size();</span>
<span id="L26"><span class="lineNum">      26</span>                 :             : </span>
<span id="L27"><span class="lineNum">      27</span>                 :             :     size_t capacity();</span>
<span id="L28"><span class="lineNum">      28</span>                 :             : </span>
<span id="L29"><span class="lineNum">      29</span>                 :             :     T front();</span>
<span id="L30"><span class="lineNum">      30</span>                 :             : </span>
<span id="L31"><span class="lineNum">      31</span>                 :             :     T back();</span>
<span id="L32"><span class="lineNum">      32</span>                 :             : </span>
<span id="L33"><span class="lineNum">      33</span>                 :             :     void push_back(const T &amp;item);</span>
<span id="L34"><span class="lineNum">      34</span>                 :             : </span>
<span id="L35"><span class="lineNum">      35</span>                 :             :     void push_front(const T &amp;item);</span>
<span id="L36"><span class="lineNum">      36</span>                 :             : </span>
<span id="L37"><span class="lineNum">      37</span>                 :             :     bool pop(T &amp;item);   //保存在item</span>
<span id="L38"><span class="lineNum">      38</span>                 :             : </span>
<span id="L39"><span class="lineNum">      39</span>                 :             :     bool pop(T &amp;item, int timeout);  //在timeout后保存</span>
<span id="L40"><span class="lineNum">      40</span>                 :             : </span>
<span id="L41"><span class="lineNum">      41</span>                 :             :     void flush();</span>
<span id="L42"><span class="lineNum">      42</span>                 :             : </span>
<span id="L43"><span class="lineNum">      43</span>                 :             : private:</span>
<span id="L44"><span class="lineNum">      44</span>                 :             :     std::deque&lt;T&gt; deq_;  //基础队列数据结构</span>
<span id="L45"><span class="lineNum">      45</span>                 :             :     size_t capacity_;       </span>
<span id="L46"><span class="lineNum">      46</span>                 :             :     std::mutex mtx_;        //保持同步</span>
<span id="L47"><span class="lineNum">      47</span>                 :             :     bool isClose_;  </span>
<span id="L48"><span class="lineNum">      48</span>                 :             :     std::condition_variable condConsumer_;</span>
<span id="L49"><span class="lineNum">      49</span>                 :             :     std::condition_variable condProducer_;</span>
<span id="L50"><span class="lineNum">      50</span>                 :             : };</span>
<span id="L51"><span class="lineNum">      51</span>                 :             : </span>
<span id="L52"><span class="lineNum">      52</span>                 :             : template&lt;class T&gt;</span>
<span id="L53"><span class="lineNum">      53</span>                 :<span class="tlaGNC tlaBgGNC">           1 : BlockDeque&lt;T&gt;::BlockDeque(size_t Maxcapicity) : capacity_(Maxcapicity)</span></span>
<span id="L54"><span class="lineNum">      54</span>                 :             : {</span>
<span id="L55"><span class="lineNum">      55</span>         [<span class="tlaUNC" title="Branch 0 was not taken"> - </span><span class="tlaGBC" title="Branch 1 was taken 1 time"> + </span>]:<span class="tlaGNC">           1 :     assert(Maxcapicity &gt; 0);</span></span>
<span id="L56"><span class="lineNum">      56</span>                 :<span class="tlaGNC">           1 :     isClose_ = false;</span></span>
<span id="L57"><span class="lineNum">      57</span>                 :<span class="tlaGNC">           1 : }</span></span>
<span id="L58"><span class="lineNum">      58</span>                 :             : </span>
<span id="L59"><span class="lineNum">      59</span>                 :             : template&lt;class T&gt;</span>
<span id="L60"><span class="lineNum">      60</span>                 :<span class="tlaGNC">           1 : BlockDeque&lt;T&gt;::~BlockDeque()</span></span>
<span id="L61"><span class="lineNum">      61</span>                 :             : {</span>
<span id="L62"><span class="lineNum">      62</span>                 :<span class="tlaGNC">           1 :     Close();</span></span>
<span id="L63"><span class="lineNum">      63</span>                 :<span class="tlaGNC">           1 : };</span></span>
<span id="L64"><span class="lineNum">      64</span>                 :             : </span>
<span id="L65"><span class="lineNum">      65</span>                 :             : template&lt;class T&gt;</span>
<span id="L66"><span class="lineNum">      66</span>                 :<span class="tlaGNC">           2 : void BlockDeque&lt;T&gt;::Close()</span></span>
<span id="L67"><span class="lineNum">      67</span>                 :             : {</span>
<span id="L68"><span class="lineNum">      68</span>                 :<span class="tlaGNC">           2 :     clear();</span></span>
<span id="L69"><span class="lineNum">      69</span>                 :<span class="tlaGNC">           2 :     isClose_ = true;</span></span>
<span id="L70"><span class="lineNum">      70</span>                 :<span class="tlaGNC">           2 :     condProducer_.notify_all();</span></span>
<span id="L71"><span class="lineNum">      71</span>                 :<span class="tlaGNC">           2 :     condConsumer_.notify_all();</span></span>
<span id="L72"><span class="lineNum">      72</span>                 :<span class="tlaGNC">           2 : };</span></span>
<span id="L73"><span class="lineNum">      73</span>                 :             : </span>
<span id="L74"><span class="lineNum">      74</span>                 :             : template&lt;class T&gt;</span>
<span id="L75"><span class="lineNum">      75</span>                 :<span class="tlaGNC">           2 : void BlockDeque&lt;T&gt;::flush()</span></span>
<span id="L76"><span class="lineNum">      76</span>                 :             : {</span>
<span id="L77"><span class="lineNum">      77</span>                 :<span class="tlaGNC">           2 :     condConsumer_.notify_one();</span></span>
<span id="L78"><span class="lineNum">      78</span>                 :<span class="tlaGNC">           2 : };</span></span>
<span id="L79"><span class="lineNum">      79</span>                 :             : </span>
<span id="L80"><span class="lineNum">      80</span>                 :             : template&lt;class T&gt;</span>
<span id="L81"><span class="lineNum">      81</span>                 :<span class="tlaGNC">           2 : void BlockDeque&lt;T&gt;::clear()</span></span>
<span id="L82"><span class="lineNum">      82</span>                 :             : {</span>
<span id="L83"><span class="lineNum">      83</span>         [<span class="tlaGBC" title="Branch 0 was taken 2 times"> + </span><span class="tlaUNC" title="Branch 1 was not taken"> - </span>]:<span class="tlaGNC">           2 :     std::lock_guard&lt;std::mutex&gt; locker(mtx_);</span></span>
<span id="L84"><span class="lineNum">      84</span>                 :<span class="tlaGNC">           2 :     deq_.clear();</span></span>
<span id="L85"><span class="lineNum">      85</span>                 :<span class="tlaGNC">           2 : }</span></span>
<span id="L86"><span class="lineNum">      86</span>                 :             : </span>
<span id="L87"><span class="lineNum">      87</span>                 :             : template&lt;class T&gt;</span>
<span id="L88"><span class="lineNum">      88</span>                 :             : T BlockDeque&lt;T&gt;::front()</span>
<span id="L89"><span class="lineNum">      89</span>                 :             : {</span>
<span id="L90"><span class="lineNum">      90</span>                 :             :     std::lock_guard&lt;std::mutex&gt; locker(mtx_);</span>
<span id="L91"><span class="lineNum">      91</span>                 :             :     return deq_.front();</span>
<span id="L92"><span class="lineNum">      92</span>                 :             : }</span>
<span id="L93"><span class="lineNum">      93</span>                 :             : </span>
<span id="L94"><span class="lineNum">      94</span>                 :             : template&lt;class T&gt;</span>
<span id="L95"><span class="lineNum">      95</span>                 :             : T BlockDeque&lt;T&gt;::back()</span>
<span id="L96"><span class="lineNum">      96</span>                 :             : {</span>
<span id="L97"><span class="lineNum">      97</span>                 :             :     std::lock_guard&lt;std::is_nothrow_destructible&lt;std::mutex&gt;&gt; locker(mtx_);</span>
<span id="L98"><span class="lineNum">      98</span>                 :             :     return deq_.back();</span>
<span id="L99"><span class="lineNum">      99</span>                 :             : }</span>
<span id="L100"><span class="lineNum">     100</span>                 :             : </span>
<span id="L101"><span class="lineNum">     101</span>                 :             : template&lt;class T&gt;</span>
<span id="L102"><span class="lineNum">     102</span>                 :             : size_t BlockDeque&lt;T&gt;::size()</span>
<span id="L103"><span class="lineNum">     103</span>                 :             : {</span>
<span id="L104"><span class="lineNum">     104</span>                 :             :     std::lock_guard&lt;std::mutex&gt; locker(mtx_);</span>
<span id="L105"><span class="lineNum">     105</span>                 :             :     return deq_.size();</span>
<span id="L106"><span class="lineNum">     106</span>                 :             : }</span>
<span id="L107"><span class="lineNum">     107</span>                 :             : </span>
<span id="L108"><span class="lineNum">     108</span>                 :             : template&lt;class T&gt;</span>
<span id="L109"><span class="lineNum">     109</span>                 :             : size_t BlockDeque&lt;T&gt;::capacity()</span>
<span id="L110"><span class="lineNum">     110</span>                 :             : {</span>
<span id="L111"><span class="lineNum">     111</span>                 :             :     std::lock_guard&lt;std::mutex&gt; locker(mtx_);</span>
<span id="L112"><span class="lineNum">     112</span>                 :             :     return capacity_;</span>
<span id="L113"><span class="lineNum">     113</span>                 :             : }</span>
<span id="L114"><span class="lineNum">     114</span>                 :             : </span>
<span id="L115"><span class="lineNum">     115</span>                 :             : template&lt;class T&gt;</span>
<span id="L116"><span class="lineNum">     116</span>                 :<span class="tlaGNC">           1 : void BlockDeque&lt;T&gt;::push_back(const T &amp;item)</span></span>
<span id="L117"><span class="lineNum">     117</span>                 :             : {</span>
<span id="L118"><span class="lineNum">     118</span>         [<span class="tlaGBC" title="Branch 0 was taken 1 time"> + </span><span class="tlaUNC" title="Branch 1 was not taken"> - </span>]:<span class="tlaGNC">           1 :     std::unique_lock&lt;std::mutex&gt; locker(mtx_);</span></span>
<span id="L119"><span class="lineNum">     119</span>         [<span class="tlaUNC" title="Branch 0 was not taken"> - </span><span class="tlaGBC" title="Branch 1 was taken 1 time"> + </span>]:<span class="tlaGNC">           1 :     while(deq_.size() &gt;= capacity_)</span></span>
<span id="L120"><span class="lineNum">     120</span>                 :             :     {</span>
<span id="L121"><span class="lineNum">     121</span>         [<span class="tlaUNC" title="Branch 0 was not executed"> # </span><span class="tlaUNC" title="Branch 1 was not executed"> # </span>]:<span class="tlaUNC tlaBgUNC">           0 :         condProducer_.wait(locker);  //日志队列满,发生阻塞,等待消费唤醒</span></span>
<span id="L122"><span class="lineNum">     122</span>                 :             :     }</span>
<span id="L123"><span class="lineNum">     123</span>         [<span class="tlaGBC" title="Branch 0 was taken 1 time"> + </span><span class="tlaUNC" title="Branch 1 was not taken"> - </span>]:<span class="tlaGNC tlaBgGNC">           1 :     deq_.push_back(item);</span></span>
<span id="L124"><span class="lineNum">     124</span>                 :<span class="tlaGNC">           1 :     condConsumer_.notify_one(); //唤醒一个消费者线程</span></span>
<span id="L125"><span class="lineNum">     125</span>                 :<span class="tlaGNC">           1 : }</span></span>
<span id="L126"><span class="lineNum">     126</span>                 :             : </span>
<span id="L127"><span class="lineNum">     127</span>                 :             : template&lt;class T&gt;</span>
<span id="L128"><span class="lineNum">     128</span>                 :             : void BlockDeque&lt;T&gt;::push_front(const T &amp;item)</span>
<span id="L129"><span class="lineNum">     129</span>                 :             : {</span>
<span id="L130"><span class="lineNum">     130</span>                 :             :     std::unique_lock&lt;std::mutex&gt; locker(mtx_);</span>
<span id="L131"><span class="lineNum">     131</span>                 :             :     while(deq_.size() &gt;= capacity_)</span>
<span id="L132"><span class="lineNum">     132</span>                 :             :     {</span>
<span id="L133"><span class="lineNum">     133</span>                 :             :         condProducer_.wait(locker);</span>
<span id="L134"><span class="lineNum">     134</span>                 :             :     }</span>
<span id="L135"><span class="lineNum">     135</span>                 :             :     deq_.push_front(item);</span>
<span id="L136"><span class="lineNum">     136</span>                 :             :     condConsumer_.notify_one();</span>
<span id="L137"><span class="lineNum">     137</span>                 :             : }</span>
<span id="L138"><span class="lineNum">     138</span>                 :             : </span>
<span id="L139"><span class="lineNum">     139</span>                 :             : template&lt;class T&gt;</span>
<span id="L140"><span class="lineNum">     140</span>                 :<span class="tlaGNC">           1 : bool BlockDeque&lt;T&gt;::empty()</span></span>
<span id="L141"><span class="lineNum">     141</span>                 :             : {</span>
<span id="L142"><span class="lineNum">     142</span>         [<span class="tlaGBC" title="Branch 0 was taken 1 time"> + </span><span class="tlaUNC" title="Branch 1 was not taken"> - </span>]:<span class="tlaGNC">           1 :     std::lock_guard&lt;std::mutex&gt; locker(mtx_);</span></span>
<span id="L143"><span class="lineNum">     143</span>                 :<span class="tlaGNC">           2 :     return deq_.empty();</span></span>
<span id="L144"><span class="lineNum">     144</span>                 :<span class="tlaGNC">           1 : }</span></span>
<span id="L145"><span class="lineNum">     145</span>                 :             : </span>
<span id="L146"><span class="lineNum">     146</span>                 :             : template&lt;class T&gt;</span>
<span id="L147"><span class="lineNum">     147</span>                 :<span class="tlaGNC">           1 : bool BlockDeque&lt;T&gt;::full()</span></span>
<span id="L148"><span class="lineNum">     148</span>                 :             : {</span>
<span id="L149"><span class="lineNum">     149</span>         [<span class="tlaGBC" title="Branch 0 was taken 1 time"> + </span><span class="tlaUNC" title="Branch 1 was not taken"> - </span>]:<span class="tlaGNC">           1 :     std::lock_guard&lt;std::mutex&gt; locker{mtx_};</span></span>
<span id="L150"><span class="lineNum">     150</span>                 :<span class="tlaGNC">           2 :     return deq_.size() &gt;= capacity_;</span></span>
<span id="L151"><span class="lineNum">     151</span>                 :<span class="tlaGNC">           1 : }</span></span>
<span id="L152"><span class="lineNum">     152</span>                 :             : </span>
<span id="L153"><span class="lineNum">     153</span>                 :             : template&lt;class T&gt;</span>
<span id="L154"><span class="lineNum">     154</span>                 :<span class="tlaGNC">           2 : bool BlockDeque&lt;T&gt;::pop(T&amp; item)</span></span>
<span id="L155"><span class="lineNum">     155</span>                 :             : {</span>
<span id="L156"><span class="lineNum">     156</span>         [<span class="tlaGBC" title="Branch 0 was taken 2 times"> + </span><span class="tlaUNC" title="Branch 1 was not taken"> - </span>]:<span class="tlaGNC">           2 :     std::unique_lock&lt;std::mutex&gt; locker(mtx_);</span></span>
<span id="L157"><span class="lineNum">     157</span>         [<span class="tlaGBC" title="Branch 0 was taken 2 times"> + </span><span class="tlaGBC" title="Branch 1 was taken 1 time"> + </span>]:<span class="tlaGNC">           3 :     while(deq_.empty())     //判空</span></span>
<span id="L158"><span class="lineNum">     158</span>                 :             :     {</span>
<span id="L159"><span class="lineNum">     159</span>         [<span class="tlaGBC" title="Branch 0 was taken 2 times"> + </span><span class="tlaUNC" title="Branch 1 was not taken"> - </span>]:<span class="tlaGNC">           2 :         condConsumer_.wait(locker);</span></span>
<span id="L160"><span class="lineNum">     160</span>         [<span class="tlaGBC" title="Branch 0 was taken 1 time"> + </span><span class="tlaGBC" title="Branch 1 was taken 1 time"> + </span>]:<span class="tlaGNC">           2 :         if(isClose_)</span></span>
<span id="L161"><span class="lineNum">     161</span>                 :             :         {</span>
<span id="L162"><span class="lineNum">     162</span>                 :<span class="tlaGNC">           1 :             return false;</span></span>
<span id="L163"><span class="lineNum">     163</span>                 :             :         }</span>
<span id="L164"><span class="lineNum">     164</span>                 :             :     }</span>
<span id="L165"><span class="lineNum">     165</span>         [<span class="tlaGBC" title="Branch 0 was taken 1 time"> + </span><span class="tlaUNC" title="Branch 1 was not taken"> - </span>]:<span class="tlaGNC">           1 :     item = deq_.front();</span></span>
<span id="L166"><span class="lineNum">     166</span>                 :<span class="tlaGNC">           1 :     deq_.pop_front();</span></span>
<span id="L167"><span class="lineNum">     167</span>                 :<span class="tlaGNC">           1 :     condProducer_.notify_one(); //唤醒一个等待该条件变量的生产者线程</span></span>
<span id="L168"><span class="lineNum">     168</span>                 :<span class="tlaGNC">           1 :     return true;</span></span>
<span id="L169"><span class="lineNum">     169</span>                 :<span class="tlaGNC">           2 : }</span></span>
<span id="L170"><span class="lineNum">     170</span>                 :             : //pop只从头部pop</span>
<span id="L171"><span class="lineNum">     171</span>                 :             : template&lt;class T&gt;</span>
<span id="L172"><span class="lineNum">     172</span>                 :             : bool BlockDeque&lt;T&gt;::pop(T&amp; item, int timeout)</span>
<span id="L173"><span class="lineNum">     173</span>                 :             : {</span>
<span id="L174"><span class="lineNum">     174</span>                 :             :     std::unique_lock&lt;std::mutex&gt; locker(mtx_);</span>
<span id="L175"><span class="lineNum">     175</span>                 :             :     while(deq_.empty())</span>
<span id="L176"><span class="lineNum">     176</span>                 :             :     {</span>
<span id="L177"><span class="lineNum">     177</span>                 :             :         if(condConsumer_.wait_for(locker, std::chrono::seconds(timeout))</span>
<span id="L178"><span class="lineNum">     178</span>                 :             :                 == std::cv_status::timeout)</span>
<span id="L179"><span class="lineNum">     179</span>                 :             :         {</span>
<span id="L180"><span class="lineNum">     180</span>                 :             :             return false;</span>
<span id="L181"><span class="lineNum">     181</span>                 :             :         }</span>
<span id="L182"><span class="lineNum">     182</span>                 :             :         if(isClose_)</span>
<span id="L183"><span class="lineNum">     183</span>                 :             :         {</span>
<span id="L184"><span class="lineNum">     184</span>                 :             :             return false;</span>
<span id="L185"><span class="lineNum">     185</span>                 :             :         }</span>
<span id="L186"><span class="lineNum">     186</span>                 :             :     }</span>
<span id="L187"><span class="lineNum">     187</span>                 :             :     item = deq_.front();</span>
<span id="L188"><span class="lineNum">     188</span>                 :             :     deq_.pop_front();</span>
<span id="L189"><span class="lineNum">     189</span>                 :             :     condProducer_.notify_one();</span>
<span id="L190"><span class="lineNum">     190</span>                 :             :     return true;</span>
<span id="L191"><span class="lineNum">     191</span>                 :             : }</span>
<span id="L192"><span class="lineNum">     192</span>                 :             : </span>
<span id="L193"><span class="lineNum">     193</span>                 :             : </span>
<span id="L194"><span class="lineNum">     194</span>                 :             : #endif</span>
        </pre>
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